Abstract: Provided is a method of manufacturing a voice coil, and more particularly, a method of manufacturing a voice coil in which a coil pattern is formed on a wafer level package. The method includes (a) forming a first coil pattern including a first area in which a first seed metal layer is exposed upward, a second area in which a first passivation layer for forming a via hole in the first area is formed, and a third area in which a first photoresist layer is formed in a portion of the first area and the second area on an upper surface of a wafer, (b) filling an inside of the via hole formed in the first coil pattern with a conductive material and forming first coil windings, and (c) removing the first photoresist layer formed in the third area.

Abstract: The present invention relates to an inductor and a method of manufacturing an inductor and provides an inductor which can minimize the area required for mounting, reduce parasitic capacitance generated between a circuit pattern of a substrate and a coil pattern of the inductor, and be efficiently manufactured by providing both of a first external electrode portion and a second external electrode portion on one of six surfaces of the inductor while including a coil pattern portion; an insulating portion; the first external electrode portion; and the second external electrode portion.

Abstract: A coil system for a plasmoid thruster includes a bias coil, a drive coil and field coils. The bias and drive coils are interleaved with one another as they are helically wound about a conical region. A first field coil defines a first passage at one end of the conical region, and is connected in series with the bias coil. A second field coil defines a second passage at an opposing end of the conical region, and is connected in series with the bias coil.

Abstract: A system and method for transiently connecting modular elements of a self movable robot. The self movable robot is known as metamorphosing robots, polymorphic robots, shape changing robots, or morphable structures. The modular elements can act together to build a structure to perform a given task. Each modular robotic module contains a mechanism allowing for communication and transfer of power between adjacent modules, and defining a robot whole to be all the modules in one connected component.

Abstract: A superconductive multi-phase transformer has a toroidal winding disposed in a tank with a cooling medium. The toroidal winding is divided along its course for each phase into winding sections. Magnetic fluxes in the winding sections are closed by at least one yoke. The tank is divided into tank sections at separating points of the toroidal winding by the at least one yoke.

Abstract: An inductive structure for use in high frequency integrated circuits is provided. A conductive path forming the structure is arranged so extra conductive material is located at portions of the cross-section of the conductive path where current tends to flow at high frequency.

Abstract: Magnetic point pole placements in a generally spherical arrangement of electromagnets forms a magnetic field. The magnetic arrangements use five regular geometric structures and geodesic triacon breakdowns of these geometric structures. Magnets are placed at the corners of each of the solids, oriented along the radii of the solid, with similar poles pointing inward. The magnets are at the same distance from structure center, and are identical in length and strength. Magnetic vector maps of fields within the structures are compared to current magnetic mirror plasma confinement fields. Non-symmetrical arrangements of magnets using regular geometric structures include specific magnets removed and new magnets added, resulting in a local monopole magnetic field and local inner field reversed mirror, depending on whether just one or both poles of the additional magnet are within the structure. Finally, the nesting of solids is presented.

Abstract: An ignition coil is disclosed that includes a primary coil, a secondary coil and a core about which the primary and secondary coil are disposed. The secondary coil has in inner diameter greater than the diameter of the primary coil. The primary coil is disposed on the core and the secondary coil is disposed about the primary coil. The secondary coil includes a spiral-back pyramid winding configuration which results in a desired distributed capacitance for the secondary windings thereby providing desired electrical characteristics for a resonant circuit. The winding layers of the secondary coil decrease in the number of turns as the coil is wound to achieve a desired distributed capacitance of the coil. A spiral-back winding technique decreases adjacent winding layer voltages so that the inter-layer insulation requirements are reduced to a lower value thereby decreasing the insulation thickness of the secondary coil.

Abstract: A structure is provided for connection between spaced Bitter coils in a magnet with homogeneous field. The magnet is formed of several Bitter coils spaced apart from each other and two adjacent coils are connected together by two groups of conductors symmetrical with respect to a plane and in which the current components create ampere turns in opposition.

Abstract: A compact core for a transformer wherein the central leg of the core is either trapezoidal or triangular in cross-section and wherein the two side legs of the transformer core are triangular in cross-section. The selection of a trapezoidal or triangular central core leg and triangular side legs significantly reduces the overall dimensions of the transformer by constructing the side legs of the core so as to protrude into the space which would normally be immediately above or below the side legs of an E-E or E-I transformer.